Video Demo: IWISTAO Tube Buffer with Voltage Amplified Tube 6J1 Pre-amplifier Adopt Processing Cathode Output Circuit
Video Demo: IWISTAO Tube Buffer with Voltage Amplified Tu...

It is a tube buffer for those digital signal like as CD, MP3 player, and your smart phone, that adopt 2 pcs Beijing thumb tube 6J1 which is used on more famous tube preamplifier, and designed as HIFI cathode output circuit. And those component also adopt HIFI grade one.

IWISTAO Tube Buffer Amplifier with Voltage Amplified Tube 6J1 Pre-amplifier Adopt Processing Cathode Output Circuit

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Relationship Between Audio System &  Hearing Sense
Relationship Between Audio System & Hearing Sense

In general, sound frequency of human sense of hearing is from 20Hz to 20 KHz including the human voice spectrum range 150Hz ~ 4 KHz, and various musical spectrums range 40Hz ~ 18 kHz. Distribution of average spectral energy is that bass and bass is maximum, mid-treble is secondly, and treble is the least, and the human voice energy is concentrated in frequency range of 200Hz ~ 3.5 KHz. Peak of these random signal amplitudes are higher than of its average value about 10 ~ 15dB.

IWISTAO HIFI MINI Tube Hybrid Amplifier Wireless Bluetooth 4.0 6N1 Preamp Power Stage 2x28 W APT-X Desktop Audio 115/230V

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IWISTAO HIFI Pure Tube Earphone Amplifier with Black Voice 6N3 SRPP Drive 6N5P 32- 600 Ohms
IWISTAO HIFI Pure Tube Earphone Amplifier with Black Voic...

The sound is grand and magnificent, open and wide; performance of each frequency point perfect! In particular, when the use of imported tube like as RCA6080 (Default as Beijing 6N5P tube), more delicate high-frequency, low frequency more powerful!

IWISTAO HIFI Pure Tube Earphone Amplifier 6N3 SRPP Drive 6N5P 32- 600 Ohms Output Power 1W Stereo Aluminum Case Black Voice

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Bluetooth Audio Decoder with Hardware Decoding
Bluetooth Audio Decoder with Hardware Decoding


The greatest feature of Bluetooth audio decoder or Bluetooth audio amplifier is that give up traditional wired connection, use Bluetooth technology to connect mobile phones, tablet and other electronic terminals with them.

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IWISTAO HIFI 2 Inches 2X10W Full Range Speaker Wooden Labyrinth Structure Cabinet
IWISTAO HIFI 2 Inches 2X10W Full Range Speaker Wooden Lab...

This speaker completely overthrew the concept of speaker-making, speaker adopted Labyrinth cabinet structure that will get well effect but the structure is more complex, limiting its development. Through we continuous the efforts, we make a revolutionary new speaker for 2 inch full range speaker.

IWISTAO HIFI 2 Inches 2X10W Full Range Speaker Wooden Labyrinth Structure Cabinet

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Perfect Matched--- IWISTAO Single-ended Class A Tube Amplifier + CSR8670 Bluetooth4.0 Decoder Stereo  32bit DAC
Perfect Matched--- IWISTAO Single-ended Class A Tube Ampl...

Natural, warm and soft sound from this perfect matched, it is very convenient to play lossless music songs from the music player like as HIFI music app of your Bluetooth emabled devices.Natural, warm and soft sound from this perfect matched, it is very convenient to play lossless music songs from the music player like as HIFI music app of your Bluetooth emabled devices.

IWISTAO Bluetooth 4.0 CSR8670 Decoder plus single-ended tube amplifier

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